Create new Flarum\Frontend namespace

It replaces the old Http\WebApp namespace and swallows other namespaces
and files, such as Flarum\Asset.

src/Frontend/Asset/JsCompiler.php

@@ -0,0 +1,118 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Flarum\Frontend\Asset;
+
+use Exception;
+use Illuminate\Cache\Repository;
+use MatthiasMullie\Minify;
+use s9e\TextFormatter\Configurator;
+use s9e\TextFormatter\Configurator\JavaScript\Minifiers\FirstAvailable;
+
+class JsCompiler extends RevisionCompiler
+{
+    /**
+     * @var Repository
+     */
+    protected $cache;
+
+    /**
+     * @param string $path
+     * @param string $filename
+     * @param bool $watch
+     * @param Repository $cache
+     */
+    public function __construct($path, $filename, $watch = false, Repository $cache = null)
+    {
+        parent::__construct($path, $filename, $watch);
+
+        $this->cache = $cache;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function format($string)
+    {
+        if (! $this->watch) {
+            $key = 'js.'.sha1($string);
+
+            $string = $this->cache->rememberForever($key, function () use ($string) {
+                return $this->minify($string);
+            });
+        }
+
+        return $string.";\n";
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getCacheDifferentiator()
+    {
+        return $this->watch;
+    }
+
+    /**
+     * @param string $source
+     * @return string
+     */
+    protected function minify($source)
+    {
+        set_time_limit(60);
+
+        try {
+            $source = $this->minifyWithClosureCompilerService($source);
+        } catch (Exception $e) {
+            $source = $this->minifyWithFallback($source);
+        }
+
+        return $source;
+    }
+
+    /**
+     * @param string $source
+     * @return string
+     */
+    protected function minifyWithClosureCompilerService($source)
+    {
+        // The minifier may need some classes bundled with the Configurator so we autoload it
+        class_exists(Configurator::class);
+
+        $minifier = new FirstAvailable;
+
+        $remoteCache = $minifier->add('RemoteCache');
+        $remoteCache->url = 'http://s9e-textformatter.rhcloud.com/flarum-minifier/';
+
+        $hostedMinifer = $minifier->add('HostedMinifier');
+        $hostedMinifer->url = 'http://s9e-textformatter.rhcloud.com/flarum-minifier/';
+        $hostedMinifer->httpClient->timeout = 30;
+
+        $ccs = $minifier->add('ClosureCompilerService');
+        $ccs->compilationLevel = 'SIMPLE_OPTIMIZATIONS';
+        $ccs->httpClient->timeout = 30;
+
+        $minifier->add('MatthiasMullieMinify');
+
+        return $minifier->minify($source);
+    }
+
+    /**
+     * @param string $source
+     * @return string
+     */
+    protected function minifyWithFallback($source)
+    {
+        $minifier = new Minify\JS($source);
+
+        return $minifier->minify();
+    }
+}